Conveners
Multimessenger Astrophysics and Astroparticle Physics
- Eli Kasai (University of Namibia)
The pioneering underwater neutrino observatory, ANTARES, was in operation almost continuously in the Mediterranean Sea from its establishment in 2008 until its recent decommissioning in 2022. This presentation will shed light on its inception, principal findings in particle physics and astrophysics, including its extensive multi-messenger initiative. This encompassed sending alerts and...
Neutrinos, while often considered as Majorana fermions, can also behave as effectively Dirac fermions, making them candidates for pseudo-Dirac particles. This concept introduces the possibility of oscillations between active and sterile neutrinos, driven by a small mass-squared difference. This phenomenon differs from the standard oscillation scenario involving only the three active neutrino...
As experiments continue to narrow the viable WIMP parameter
space, axions have become an increasingly popular candidate
for dark matter. The nature of the axion coupling to the Standard
Model makes them far more difficult to constrain, especially in
the mass ranges usually considered for cold dark matter. So far,
astrophysical experiments have struggled to place strong limits
on such...
In the theory of relativity, the notion of a particle is based on the irreducible representation of the Poincaré group. However, there are post-relativistic theories which generalize the relativistic notions, including that of a particle. One such theory is the theory of superfluid vacuum, which describes the physical vacuum as a Euclidean 3D superfluid; whereas Lorentzian 4D spacetime and...
